A two-player chess clock that runs in your browser. Pick a time control, tap your side of the screen after each move to switch the clock, and keep the game moving.
Player 2
5:00
⚑ Time
0 moves
Player 1
5:00
⚑ Time
0 moves
Time Control
Presets:
How to use
Choose a preset or enter custom minutes, seconds, and increment.
Place the phone face-up between the two players — Player 1 sits at the bottom, Player 2 at the top (rotated).
Press Start to begin Player 1's clock (they move first).
After making a move, tap your half of the screen to stop your clock and start your opponent's.
The clock stops automatically if a player's time runs out — a red flag appears.
Press Reset any time to start a new game with the same settings.
Frequently Asked Questions
What is a chess clock increment?
Increment is extra seconds added to your clock after each move. In a 3+2 game you start with 3 minutes and gain 2 seconds after every move you make — preventing losses on time in near-finished positions.
What are the standard time controls?
Bullet: under 3 min. Blitz: 3–10 min. Rapid: 15–60 min. Classical: over 60 min. Popular online presets: 1+0, 3+2, 5+0, 5+3, 10+0, 15+10.
How do I use this on my phone?
Place the phone between the two players. The top clock is rotated 180° so both players can read their time naturally. Tap your half of the screen after each move.
What happens when time runs out?
The panel turns red and shows a ⚑ flag. The timer stops. In a real game, the flagged player loses unless their opponent has insufficient mating material.
Can I pause the game?
Yes — press the Start/Pause button in the centre bar. Both clocks freeze. Tap Resume or either player panel to continue.
What is the difference between bullet and blitz?
Bullet chess is under 3 minutes per player, demanding very fast moves. Blitz gives 3–10 minutes, allowing brief thinking time. Both are faster than rapid and classical formats.
Does this work offline?
Yes. Once the page loads, the timer runs entirely in your browser. Save the page to use it with no internet connection.
Did you know?
The first mechanical chess clock was invented in 1883 by Thomas Wilson — before that, players used hourglasses, leading to frequent disputes over remaining time.
The increment rule was proposed by Bobby Fischer in the 1980s specifically to prevent games from degenerating into pure time-scrambles at the end.
Magnus Carlsen won the 2022 FIDE World Blitz Championship using the 3+2 time control — the same preset available on this timer.
In competitive chess, touching the clock button counts as completing your move — you cannot adjust pieces after pressing it.